Improvement in piston-rod packings



.STATES PATENT OFFICE.

CHARLES H. ELLER, 0E AKRON, oHlo, ASSICNOR To HIMSELE AND` EDMUND W. BEACON, CE SAME PLACE. l Y

IMPROVEMENT IN PISTONROD PACKINGS.

Specification forming part of Letters Patent` No. 146,389, dated January 13, 1874; application filed November l5,v1873.

To all whom t may concern:

Be it known that I, CHARLES H. FULLER, of Akron, in the county of Summit and State of Ohio, have invented a new andlnseful Iinproveinent in Piston-Rod Packing/of which the following is a speciication:

The invention will rst be fully described and then pointed out in the claim.

Figure l is a Side View of a packing, partly in section, on the line :c a' of Fig. 2. Fig. 2 is Va cross-section taken on the line y y of Fig. 1.

and E are Wound around a mandrel of Wood or other material of the Size of the piston-rod, alternately, and then surroimded by the cas ing, and the whole is cut off square,so as to fill the stuftlng-box. In this manner the packing is prepared for use, and may be placed around the piston-rod by cuttingit open longitudinally, either parallel or obliquely with `the piston-rod.

The packing is elastic, and ismade to hug` the rod by serewingdown the gland. The

rubber casing keeps the coils in place, and the y soap-stone, combined with the hemp, prevents friction.

I do not conne myself strictly to the proportions of the rubber and hempen ropes, or the arrangement of the coils, as Variations may be made Without departing from my invention.

Having thus described my invention, I claim f as new and desire to secure by Letters Patent- A packing, composed of coils D 4and E, snrrounded` by an outside casing, A, substantially as shown and described, for the purposes described.

c. H. FULLER.

Witnesses J. E. WESENER, C. A. BRoUsE. 

